Regina 420 Pitch RX3 Series Plain Chain 124 Links. Designed to ensure high resistance to elongation and to the severe impulsive stresses caused by Off-Road riding. Extended bushings and solid rollers, alloy carbon steel pins, shot-peened plates to offer increased tensile strength and fatigue resistance are some of the most important features. RX3 chains feature shaped bushings and special "X" chromized alloy carbon steel pins, together with special beveled plates to provide sure engagement in the most severe Off -Road applications.
The shaped bushings reduce loading on the pins by maintaining superior contact fofr their entire length. This is ideal for the shock loadings that motocross can apply. This is also a great road racing chain being immensely strong but with a fabulous strength to light weight ratio. Ultimate tensile strength of the 420 pitch RX3 chain is 21KN, weighing in at 0.82Kg per 100 links.